Some scoping experiments were performed to evaluate fuel performance in a lithium heat pipe reactor operating at a nominal 1500K heat pipe temperature. Fuel-coolant and fuel-coolant-clad relationships showed that once a failed heat pipe occurs temperatures can rise high enough so that large concentrations of uranium can be transported by the vapor phase. Upon condensation this uranium would be capable of penetrating heat pipes adjacent to the failed pipe. The potential for propagation of failure exists with UO/sub 2/ and a lithium heat pipe. Changing the composition of the metal of the heat pipe would have only a second order effect on the kinetics of the failure mechanism. Uranium carbide and nitride were considered as potential fuels which are nonreactive in a lithium environment. At high temperatures the nitride would be favored because of its better compatibility with potential cladding materials. Compositions of UN with small additions of YN appear to offer very attractive properties for a compact high temperature high power density reactor.

This report includes tables and excerpts of references to safeguards, physical security, and related matters in the Nuclear Non-proliferation Act of 1978.

The initial research and development of a system that uses high pressure helium gas to pressurize vessels over a wide range of pressurization rates, vessel volumes, and maximum test pressures are described. A method of controlling the mass flow rate in a test vessel was developed by using the pressure difference across a capillary tube. The mass flow rate is related to the pressurization rate through a real gas equation of state. The resulting mass flow equation is then used in a control algorithm. Plots of two typical pressurization tests run on a manually operated system are included.

The LOFT pressurizer spray and surge line piping was analyzed for a 450/sup 0/F step change in fluid temperature. This transient was chosen to conservatively represent several pressurizer operating transients that had not previously been analyzed. These include temperature transients resulting from a 300/sup 0/F ..delta..T between pressurizer temperature and cold leg temperature, injection of a cooled (70/sup 0/F) slug of stagnant fluid into the hot (540/sup 0/F) spray line piping, and inflow of 100/sup 0/F primary coolant system water into the hot (480/sup 0/F) surge line piping.

This report supplies brief answers to some frequently-asked questions regarding recess appointments. These are appointments to high-level policy-making positions in federal departments which are generally confirmed by the Senate. When the Senate is in recess, the President may make a temporary appointment, called a recess appointment, to any such position without Senate approval.

A letter report issued by the Government Accountability Office with an abstract that begins "Biosafety laboratories are primarily regulated by either the Department of Health and Human Services (HHS) or the U.S. Department of Agriculture (USDA), depending on whether the substances they handle pose a threat to the health of humans or plants, animals, and related products, respectively. Currently, all operational biosafety level 4 (BSL-4) labs are overseen by HHS's Centers for Disease Control and Prevention (CDC). BSL-4 labs handle the world's most dangerous agents and toxins that cause incurable and deadly diseases. In September 2008, GAO reported that two of the five operational BSL-4 labs had less than a third of the key perimeter security controls GAO assessed and recommended that CDC implement specific perimeter controls for all BSL-4 labs. GAO was asked to (1) provide an update on what action, if any, CDC took to address the 2008 recommendation; (2) determine whether perimeter security controls at the two deficient BSL-4 labs had improved since the 2008 report; and (3) provide other observations about the BSL-4 labs it assessed. To meet these objectives, GAO reviewed CDC's statement to Congress as well as other agency and HHS documentation on actions …

A letter report issued by the Government Accountability Office with an abstract that begins "Over the last decade, Internet-based platforms have emerged that allow individuals to lend money to other individuals in what has become known as person-to-person lending. These online platforms present a new source of credit for borrowers and a potential investment opportunity for those with capital to lend. Both for-profit and nonprofit options exist, allowing for income-generating and philanthropic lending to a variety of people and groups around the world. The Dodd- Frank Wall Street Reform and Consumer Protection Act directed GAO to conduct a study of person-toperson lending. This report addresses (1) how the major person-to-person lending platforms operate and how lenders and borrowers use them; (2) the key benefits and risks to borrowers and lenders and the current system for overseeing these risks; and (3) the advantages and disadvantages of the current and alternative regulatory approaches. To do this work, GAO reviewed relevant literature, analyzed regulatory proceedings and filings, and interviewed federal and state officials and representatives of the three major person-to-person lending platforms currently operating in the United States. GAO assessed options for regulating person-to-person lending using a framework previously developed for evaluating proposals …

A letter report issued by the Government Accountability Office with an abstract that begins "Three Air Force depots support combat readiness by providing repair services to keep Air Force units operating worldwide. To the extent that the depots do not complete work at year end, the work and related funding will be carried into the next fiscal year. Carryover is the reported dollar value of work that has been ordered and funded by customers but not completed at the end of the fiscal year. GAO was asked to determine the extent to which: (1) budget information on depot maintenance carryover approximated actual results from fiscal years 2006 through 2010 and, if not, any needed actions to improve budgeting for carryover; (2) depot maintenance carryover exceeded the allowable amount and any adjustments were made to the allowable amount; and (3) there was growth in carryover at the depots and the reasons for the growth. To address these objectives, GAO (1) reviewed relevant carryover guidance, (2) obtained and analyzed reported carryover and related data at the Air Logistics Centers (ALC), and (3) interviewed DOD and Air Force officials."

A letter report issued by the Government Accountability Office with an abstract that begins "GAO has previously reported that requirements changes are factors in poor cost and schedule outcomes on Department of Defense (DOD) weapon programs. In 2007, DOD introduced Configuration Steering Boards (CSBs) to review requirement and configuration changes that could adversely affect programs. In 2008, Congress made annual CSB meetings a requirement for all of the military departments' major defense acquisition programs. In response to the Senate report accompanying the bill for the Ike Skelton National Defense Authorization Act for Fiscal Year 2011, GAO assessed (1) the extent to which DOD has complied with the statutory requirements for CSBs, and (2) the extent to which CSBs have been effective in controlling requirements and mitigating cost and schedule risks. To conduct this work, GAO surveyed DOD's major defense acquisition programs, reviewed CSB documentation, and interviewed relevant military service and program officials."

A letter report issued by the General Accounting Office with an abstract that begins "The Department of Defense (DOD) maintains equipment and infrastructure worth billions of dollars in many environments where corrosion is causing military assets to deteriorate, shortening their useful life. The resulting increase in required repairs and replacements drives up costs and takes critical systems out of action, reducing mission readiness. GAO was asked to review military activities related to corrosion control. Specifically, this report examines the extent of the impact of corrosion on DOD and the military services and the extent of the effectiveness of DOD's and the services' approach to preventing and mitigating corrosion."

A letter report issued by the Government Accountability Office with an abstract that begins "Children's deaths from maltreatment are especially distressing because they involve a failure on the part of adults who were responsible for protecting them. Questions have been raised as to whether the federal National Child Abuse and Neglect Data System (NCANDS), which is based on voluntary state reports to the Department of Health and Human Services (HHS), fully captures the number or circumstances of child fatalities from maltreatment. GAO was asked to examine (1) the extent to which HHS collects and reports comprehensive information on child fatalities from maltreatment, (2) the challenges states face in collecting and reporting this information to HHS, and (3) the assistance HHS provides to states in collecting and reporting data on child maltreatment fatalities. GAO analyzed 2009 NCANDS data--the latest data available--conducted a nationwide Web-based survey of state child welfare administrators, visited three states, interviewed HHS and other officials, and reviewed research and relevant federal laws and regulations."

A letter report issued by the General Accounting Office with an abstract that begins "Pursuant to a legislative requirement, GAO examined the General Services Administration's (GSA) retail packaging products program, focusing on whether: (1) GSA is required by law to set its prices for retail packaging products at levels sufficient to ensure that all selling costs are recovered on each item; and (2) GSA's selling prices for these items do recover all costs."

A letter report issued by the General Accounting Office with an abstract that begins "Pursuant to a congressional request, GAO provided information on the Federal Reserve Banks' (FRB) computer control vulnerabilities."

A letter report issued by the General Accounting Office with an abstract that begins "Pursuant to a congressional request, GAO reviewed the impact of organized crime and public sector corruption on the efforts of the international community to rebuild Bosnia and meet the benchmarks for the withdrawal of North Atlantic Treaty Organization (NATO) forces, focusing on: (1) how organized crime and public sector corruption might affect the successful implementation of the General Framework Agreement for Peace in Bosnia and Herzegovina (Dayton Agreement) in Bosnia; (2) whether the international community's anticorruption efforts have improved Bosnia's law enforcement and judicial system and reduced corruption; and (3) whether international assistance resources are being safeguarded and whether such assistance is being used by Bosnia in place of domestic revenues lost due to crime and corruption."

A letter report issued by the General Accounting Office with an abstract that begins "The Army's five maintenance depots produced work valued at $1.5 billion in fiscal year 2002, with the remaining 49 percent of the Army's depot work performed by contractors. GAO was asked to assess (1) the trends in and the reliability of depot workload projections; (2) whether workloads are sufficient for efficient depot operations, initiatives are under way to improve efficiency, and additional workloads are possible; (3) whether the Army has identified depots' core capability and provided workload to support that capability; and (4) whether the Army has a long-range plan for a viable, efficient depot system."

A letter report issued by the General Accounting Office with an abstract that begins "Pursuant to a legislative requirement, GAO reviewed the Department of Defense's (DOD) base closure accounts and its budget request for base closure activities, focusing on: (1) how trends in base realignment and closure appropriations in recent years and estimates for future years compare to the fiscal year (FY) 2001 budget request; and (2) unliquidated obligations and unobligated balances from prior years' appropriations and the extent to which DOD considered these balances and obligations in preparing the FY 2001 budget request."

The multiblade slurry technique capable of slicing 10 cm ingot into wafers 0.25 mm thick with only 0.20 mm kerf loss and 98% yield has been demonstrated. The total silicon requirement represents an ingot to sheet conversion of 0.95 m/sup 2//kg. Full production slicing tests have demonstrated the cost of MS slicing to contribute $40 to $50/m/sup 2/, with ''best effort'' estimates for today's configuration to be $30 to $35/m/sup 2/. By reducing material cost, and increasing the specific capacity of a saw to slice 900 wafers simultaneously, the long-term cost of MS slicing is estimated to be less than $10/m/sup 2/. The conversion of ingot to sheet is shown to be the most valuable contribution of slicing technology. At today's ingot costs, and with the thin wafer, low kerf loss slicing techniques demonstrated, the silicon material represents 5 to 10 times the cost of the wafering process in finished silicon wafers. Increasing the number of blades used in MS slicing from 100 to 150 to 225 to 300 has resulted in a reduction of yield to 33 to 70% for thin slicing, or an increase in wafer thickness to 0.30 mm slices. The limitation is intrinsic misalignment of multiple …

A letter report issued by the Government Accountability Office with an abstract that begins "Title XVII of the Energy Policy Act of 2005 established DOE's loan guarantee program (LGP) for innovative energy projects that should decrease air pollutants or greenhouse gases and that have a reasonable prospect of repayment. For fiscal years 2008 and 2009, Congress authorized the use of borrower fees to pay the costs of loan guarantees through Title XVII's "borrower pays" option, under which DOE will limit loan guarantees to $38.5 billion. Congress mandated that GAO review DOE's progress in implementing the LGP. GAO assessed DOE's progress in (1) issuing final regulations and (2) taking actions to help ensure that the program is managed effectively and to maintain accountability. GAO also assessed how inherent risks due to the nature of the LGP may affect DOE's ability to achieve intended program outcomes. GAO analyzed DOE's regulations, guidance, and program documents and files; reviewed Title XVII; and interviewed DOE officials."

This report provides an overview of the most common considerations that may be taken into account when preparing the initial draft for a Senate bill or resolution.

With Congress considering a possible change regarding sensitive covert action policy, this memorandum describes the statutory provision authorizing Gang of Eight notifications, reviews the legislative history of the provision, and examine both the impact of such notifications on congressional oversight as well as options that Congress might consider to possibly improve oversight.

The annual State, Foreign Operations, and Related Agencies appropriations bill is the primary legislative vehicle through which Congress reviews the U.S. international affairs budget and influences executive branch foreign policy making in general. On May 7, 2009, President Obama submitted a budget proposal for FY2010 that requests $53.9 billion for the international affairs budget. This report analyzes the FY2010 request, recent-year funding trends, and congressional action for FY2010. To date, this includes the introduction and committee approval of H.R. 3081, the House State-Foreign Operations Appropriations bill for FY2010.

With limited natural resources, a crippling illiteracy rate, and high population growth, Yemen faces an array of daunting development challenges that some observers believe make it at risk for becoming a failed state in the next few decades. As the country's population rapidly rises, resources dwindle, and terrorist groups take root in the outlying provinces, the Obama Administration and the 111th Congress are left to grapple with the consequences of Yemeni instability. As President Obama and the 111th Congress reassess U.S. policy toward the Arab world, the opportunity for improved U.S.-Yemeni ties is strong, though recurring tensions over counterterrorism cooperation and lack of U.S. interest in Yemen within the broader foreign policy community persist.

Section 1206 of the National Defense Authorization Act (NDAA) for Fiscal Year 2006 provides the Secretary of Defense with authority to train and equip foreign military and foreign maritime security forces. This authority expires in FY2011. As of early July 2009, FY2009 project approvals are being finalized. This report addresses FY2009 project approvals as well as FY2010 project proposals and requests.

This report considers the constitutionality of federal tort reform legislation, such as the products liability and medical malpractice reform proposals that have been introduced for the last several Congresses. Tort law at present is almost exclusively state law rather than federal law, although, as noted in the appendix to this report, Congress has enacted a number of tort reform statutes.